In my very first AD&D campaign, we had a lawful-evil PC, which played his alignment very well, but still came out as the most benign and goodly next to my "chaotic-neutral with good tendencies" bard when compared to the "Chaotic-bloodthirsty" rest of the group.
One current campaign has a paladin in it, which precludes evil PCs.
The other current campaign currently has one party member getting seduced by the dark side, so to speak - the duelist is taking lessons in a temple whose head priestess is evil - and the rest of the party not being that better off - one rogue is greedy and has few morals, both the cleric and the fighter frequent the temple as well.
One current campaign has a paladin in it, which precludes evil PCs.
The other current campaign currently has one party member getting seduced by the dark side, so to speak - the duelist is taking lessons in a temple whose head priestess is evil - and the rest of the party not being that better off - one rogue is greedy and has few morals, both the cleric and the fighter frequent the temple as well.